J, A. Sinton. 363
Yakimoff found ticks belonging to the genera Ripicephalus and
Dermacentor as ectoparasites on the hedgehogs he exaniined and, from
some transmission experiments which he made, thotijjht that the nymphs
of Dermacentor reticulaltis might be the possible carriers of the infection
in hedgehogs in Russia.
Galli-Valerio thought that in Tunis it might possibly be carriid by Amblyomnia lariegulum. No ectoparasites were found on the two infected hedgehogs examined by me, but this might have been due to such parasites having left the dead bodies, which were not seen by me unfortunately until some hours after death had taken place.
My thanks are due to the London School of Tropical Medicine for affording me facilities for working in the laboratories there and to Dr. J. Gordon Thomson ft r much help and advice.
REFERENCES.
1. Yakimoff, W. L .. .. 'Die Zeckcn und Piroplasmen des Igels ' Contralbl. /. Bakt. etc. I. Abt. Originale Bd. 52. Heft. 4, pp. 472—477. 2. G.vuliValeeio, B. . . ' Sur un Piroplasma d' Erinaceva algirus.' Centralbl. /. Bakt. etc. I. Abt. Originale Bd. 58. Heft. G, pp. 5t)5 — 567.
